Personalized NFC tags

There are many people out there have have smart phones equipped with NFC and have no idea that it's even there, what it does or the potential it has. NFC tags that can be in the form of a key ring , business card or even a sticker can be personalized to do tasks automatically. For example I could have a sticker on my nightstand that when the phone touches it an alarm is set. My idea is that a site is set up where people can request certain NFC tags to be programmed for their specific needs.